Question

100 j of heat are produced each Second in a 4ohm resistance find the potential difference across the resistor​

Answer 1

Answer:

The resistor's potential difference given here is 20 V

Given:

Heat produced = 100 J  

Time = 1 second

Resistance across the resistor = 4 ohm

To find:

Potential resistance across the resistor

Solution:

We know that heating effect of electric current,

The above relation of the heating effect can also be written as,

Here, I=5, and R=4 ohm

Therefore, the resistor's potential difference is 20 V